(1) The debarring official shall review the proposed decision in accordance with the Administrative Procedure Act, chapter 34.05 RCW and any objections, written arguments and briefs timely filed by the parties. The debarring official may:

(a) Allow the parties to present oral arguments;

(b) Allow the parties to submit additional information if circumstances so warrant; or

(c) Remand the matter to the delegate or administrative law judge for further proceedings;

(2) The debarring official shall issue a final decision that adopts in whole or in part, modifies or rejects the proposed decision.

(a) If the decision is to issue a debarment order, the debarment becomes effective on the date specified in the debarment order.

(b) If the decision is to issue a fine in lieu of debarment, the fine becomes due and effective on the date specified in the order.

(3) The debarring official shall cause service of the final decision on all parties. Either the contractor or affiliate or both may file a petition for review of the final decision to superior court. If neither the contractor nor affiliate appeals within the period set by RCW 34.05.542, the debarring official's decision is conclusive and binding on all parties. The appeal must be filed within thirty days from service of the final decision.